Below Is the Dark Keio Line

College student Kotoha falls in love at first sight with Shima-kun, who saves her from being taken home by a guy after a drinking party. In order to win over the indifferent Shima-kun, Kotoha helps him investigate "truly disturbing stories" that he is obsessed with, but it seems that Kotoha has a constitution that attracts spirits and supernatural beings, and she is constantly in danger of losing her life—!? (Source: Futabasha, translated)